Woollard George Prior

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Woollard
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George Prior
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  • Technical Report
    A manual for Sofar observers
    (Woods Hole Oceanographic Institution, 1947-07-01) Woollard, George Prior
    This manual has been prepared primarily for the men who are engaged in field research problems connected with the use of Sofar, the installation of Sofar monitoring stations and the operation of Sofar systems of position determination. Although the manual is devoted primarily to a discussion of problems peculiar to Sofar, it also included discussion of several allied subjects of which it is felt the field observer must have cognizance in order to carry out intelligent and successful investigations. The subject matter included is as follows: a discussion of the principles involved in Sofar, Sofar bombs and detonators, present Sofar monitoring equipment, types of Sofar observational data, interpretation of Sofar observations, Sofar triangulation methods, oceanographic measurements, and methods of determining ship's position.
  • Technical Report
    Final report on 1961-62 gravity standardization studies
    (Woods Hole Oceanographic Institution, 1962-07) Woollard, George Prior ; Longueville, R. Longfield ; Carlson, Barry
    The successful promulgation of any regional gravity program carried out with gravimeters depends upon several factors. These can be described as (1) instrumental characteristics, (2) calibration standard, (3) method of survey, and (4) reduction procedure. It is assumed the instrument is reliable, has adequate range, and that the observer takes normal precautions to secure good data. Although much research has been devoted to the study of the effect of slight imperfections in the pitch of the reading dial screw, reading dial graduation error, effect of pressure and temperature changes on instrumental drift rate and readings, linearity of response, and calibration stability, all that has been ascertained is that each instrument constitutes an individual problem, and that no 'two instruments have the same characteristics although in gross terms they may be identical. Therefore, in order for data obtained using several gravimeters, or data obtained by several unrelated groups to be integrated it is necessary that there be some standards for either evaluating the instruments used directly or the data obtained through spot check observations with a standardized instrument.
  • Technical Report
    Bathymetry, control positions and aspect of proposed SOFAR stations in the Pacific Ocean
    (Woods Hole Oceanographic Institution, 1946-07-24) Woollard, George Prior
    The purpose of this memorandum is to present the available information on the nature of the bottom off the coasts of California and Hawaii adjacent to the proposed SOFAR stations in the Pacific Ocean, the best probable location for the hydrophones, the probable areas of reception, the positions of fixed land control points, and other information that will facilitate the establishment of an efficient monitoring system. The writer is indebted to the Director and personnel of the U. S. Coast and Geodetic Survey for copies of boat sheets containing soundings, data on the deflection of the vertical, and triangulation station data in the areas involved.
  • Technical Report
    Final Report on Gravity Program
    (Woods Hole Oceanographic Institution, 1960-07) Woollard, George Prior ; Rose, James C.
    The report presented is the final one under Air Force Cambridge Research Center Contract 19(604)·2157 with the Woods Role Oceanographic Institution. The report covers a program of pendulum and gravimeter measurements conducted over the period 1950·1959. The original objective of the program was to establish a series of reliable gravity control measurements through the use of pendulums over a sufficient range of gravity to permit the calibration of geodetic gravimeters with an accuracy of one part in 5000 over a range of 5000 mgals and thus assure a potential accuracy of 1 mgal or better with such gravimeters on any global series of measurements. With time this objective was modified to include the establishment of pendulum gravity measurements outside of North America as there appeared to be no unanimity of international opinion regarding a gravity standard. A second objective of the program was to expand the gravity coverage and standardize existing gravity surveys within the United States so that reliable gravity anomaly maps could be prepared. A third objective was to strengthen and expand the world network of airport gravity bases established earlier under the auspices of the Office of Naval Research so that data in all parts of the world could be integrated onto the same datum and gravity standard. The report is subdivided on the basis of these objectives into three principal parts plus an introductory chapter giving the history o~ the program, and a final chapter presenting recommendations as to further work deemed desirable. Dr. J. C. Rose, who has been in charge of the pendulum program since its inception, prepared the second portion of the report, which deals with the pendulum measurements, and the writer prepared the remainder.
  • Technical Report
    Acoustic properties of mud bottoms
    (Woods Hole Oceanographic Institution, 1944-12-06) Woollard, George Prior
    In Reference A and Reference B, it has been pointed out that the acoustic properties of bottoms classified as MUD on the present Bottom Sediment Charts appear to vary greatly. The present memorandum is divided into two parts . Part I summarizes the acoustic information obtained over MUD bottoms that is in the files of the Woods Hole Oceanographic Institution. Part II discusses the factors that apparently control the acoustic behavior of MUD bottoms and considers the probability or predicting successfully the acoustic behavior of any mud from a study of these related factors.